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“Intraluminal” Pyloric Duplication: A Case Report
JKAPS 2017 Jun;23(1):15-7
Published online June 30, 2017
Copyright © 2017 Korean Association of Pediatric Surgeons.

Kyeong Deok Lee1,2, Yoshifumi Kato2, Geoffrey J. Lane2, Atsuyuki Yamataka2

1Department of Pediatric Surgery, TMG Asaka Medical Center, Saitama, 2Department of Pediatric General and Urogenital Surgery, Juntendo University School of Medicine, Tokyo, Japan
Received May 4, 2017; Revised May 31, 2017; Accepted June 5, 2017.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
We report a neonatal case of “intraluminal” pyloric duplication cyst, causing gastric obstruction after birth. Endoscopy revealed a submucosal cystic lesion approximately 15 mm in size arising from the anterior and inferior surfaces of the pylorus obliterating the pyloric canal. After laparotomy, intraoperative cholangiography was performed, which documented no communication between the cyst and the bilio-pancreatic duct. Gastrotomy was performed transversally over the antrum, and the cyst delivered through the incision. The cyst was incised, the upper part of the cyst wall removed, and a mucosectomy performed on the inner cyst wall of the lower part. The mucosa and muscle of the margin of the cyst were approximated. At follow up of 10 months, the patient is well without any sign of gastric obstruction.
Keywords : Neonate, Gastric duplication, Intraluminal, Alimentary tract duplication, Duplication cyst


June 2018, 24 (1)